Until the arrival of Aiken Drum, the 100,000 humans who had fled backward in time to Pliocene exile on Earth knew little but slavery to the Tanu – the humanoid aliens who came from another galaxy. But King Aiken’s rule is precarious, for the Tanu’s twisted bretheren are secretly maneuvering to bring about his downfall. Worse – Aiken is about to confront a man of incredibly powerful Talents who nearly overthrew a galactic rule. He is Marc Remillard. Call him . . . The Adversary.